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Re: [PATCH 2/2] ath9k: fix dma sync in rx path

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On 2010-05-15 12:25 PM, Ming Lei wrote:
> From edd368e7436e7a80c5a43e7ad40cff1f3fa20806 Mon Sep 17 00:00:00 2001
> From: Ming Lei <tom.leiming@xxxxxxxxx>
> Date: Fri, 14 May 2010 17:35:51 +0800
> Subject: [PATCH 2/2] ath9k: fix dma sync in rx path(v2)
> 
> If buffer is to be accessed by cpu after dma is over, but
> between dma mapping and dma unmapping, we should use
> dma_sync_single_for_cpu to sync the buffer between cpu with
> device. And dma_sync_single_for_device is used to let
> device gain the buffer again.
> 
> v2: Felix pointed out dma_sync_single_for_device is needed to return
> buffer to device if an unsuccessful status bit check is found.
> 
> Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
> Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Thanks, I will test that later and let you know if it works.

- Felix
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